Description Upgrade your writing experience with these ballpoint pen cartridge refills, designed for office pen ink replacements and school writing pen refills. The premium black ink pen refills feature a precise tip, providing clear lines and uninterrupted flow for signatures and illustrations. Their simple, sleek look enhances any pen, making them the ideal choice for school pen refills and daily note taking or creative projects. Features -Color:White -Material:Plastic -Size:9.70X0.35X0.35cm/3.81X0.14X0.14in -Smooth writing experience: the ballpoint pen cartridge refills use precision 1.0 mm tips to deliver a fluid writing experience, making every school pen refill effortless for notes and signatures -Large capacity design: featuring a big ink reservoir, these black ink pen refills reduce interruptions during office work or daily writing, suit for office pen refill supplies -Clear lines for every task: the school ballpoint ink refills provide sharp, vivid lines suitable for all types of paper, ensuring retractable pen ink replacements produce professional results -Universal compatibility: these pen refills for retractable pens work with most retractable ballpoint refills, offering flexibility for school and office needs -Sleek minimalist style: designed to fit perfectly with office supplies pen refills, the pen's modern and simple look matches any school or office environment for daily usePackage list: 100 x Ballpoint Pen Refills